© 2009 Javier Sunyer (1 of 1)
Diagnosis: Can be distinguished from other species of Oedipina by the combination of its body size (one of the largest in the genus, coloration (having a silver to cream narrow dorsolateral stripe that marks the boundary between the brown dorsum and black venter, and the upper side of the tail being black), 19-20 costal grooves, 38-60 maxillary teeth, relatively narrow head with a short and rounded snout, and short limbs with small feet (Savage 2002).
Description: Oedipina grandis is one of the largest salamanders in the genus Oedipina. Adults range from 154 - 211 mm in total length. Adult males are 55 - 68 mm in standard length and adult females are 61 - 72 mm in standard length. The tail is elongated and comprises 61 - 69% of its total length. The head is fairly narrow, with a short and rounded snout. Eyes are small. This species has 19 - 20 costal grooves. Maxillary teeth number 38 - 60 and vomerine teeth number 16 - 23. O. grandis has short limbs and small feet, and hands and feet are syndactylous (Savage 2002).
Coloration: The dorsum is brown and the venter is black, with a narrow silver to cream dorsolateral stripe demarcating the boundary between dorsum and venter. The tail is black. Iris is dark brown (Savage 2002).
Similar species: Oedipina grandis can be distinguished from Oedipina poelzi by its larger adult body size (55-72 mm standard length for O. grandis, vs. 41 - 64 mm standard length for O. poelzi). narrower head and feet, and shorter legs (Savage 2002).
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Costa Rica, Panama
Life History, Abundance, Activity, and Special Behaviors
Trends and Threats
A dead gravid female was found with chytrid fungal infection at Las Tablas, Puntarenas Province, Costa Rica in 1991 (Lips et al. 1998).
Possible reasons for amphibian decline
General habitat alteration and loss
A Spanish-language species account can be found at the website of Instituto Nacional de Biodiversidad (INBio).
First described by Brame and Duellman (1970).
Brame, A. H., Jr., and Duellman, W. E. (1970). ''A new salamander (genus Oedipina) of the uniformis group from western Panama.'' Contributions in Science. Natural History Museum of Los Angeles County, 201, 1-8.
Lips, K. R. (1998). "Decline of a tropical montane amphibian fauna." Conservation Biology, 12(1), 106-117.
Savage, J. M. (2002). The Amphibians and Reptiles of Costa Rica. University of Chicago Press, Chicago and London.
Stuart, S., Hoffmann, M., Chanson, J., Cox, N., Berridge, R., Ramani, P., and Young, B. (eds) (2008). Threatened Amphibians of the World. Lynx Edicions, IUCN, and Conservation International, Barcelona, Spain; Gland, Switzerland; and Arlington, Virginia, USA.
Written by Aisha Butt (abutt AT berkeley.edu), University of California, Berkeley
First submitted 2009-11-04
Edited by Kellie Whittaker (2012-01-02)
Species Account Citation: AmphibiaWeb 2012 Oedipina grandis <http://amphibiaweb.org/species/4108> University of California, Berkeley, CA, USA. Accessed Mar 21, 2018.
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Citation: AmphibiaWeb. 2018. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 21 Mar 2018.
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